LCD Question.. Refresh Rates?

[HaloEighty8]

Hey all.. quick question here.. on my dell 1900fp I can either run 60hz or 70hz? This is my first lcd.. so is this like a monitor and the higher the refresh rate the better?

 

[BoomAM]

I wanna know that as well. Im getting a TFT as well, and it does 60hz, but has a very fast responce time of 16ms.
SOMEONE ANSWER!!!

 

[Peter]

LCDs don't refresh. They drive all the pixels all the time. So even if the video signal comes in just 60 times per second, it'll still not flicker - simply because it doesn't ever.

 

[dguy6789]

the higher the refresh rate, the less tearing you will have, plus it has less eye strain. so yes, the higher the refresh rate, the better.

 

[BoomAM]

dguy6789, I think that only apply to normal monitors,
i read somewhere, a similar explination to Peters, i was just looking for comfermation.
HaloEighty8, We have our answer.

 

[HaloEighty8]

Thanks all for the replies.. So should I run it at 70hz then? I'm still stumped..

 

[Kingofcomputer]

only run LCD at 60Hz,
this is recommended by every manufacturer.

 

[Peter]

If that LCD is on an analog (VGA) signal, then the lower the better - because the signal re-digitizing circuitry in the LCD can then phase in with the signal more easily, giving a sharper impression. If it's on DVI, then signal frequency doesn't matter at all for image quality, it's just that a higher feed rate also loads the VGA memory more - you'll get faster rendering at a lower refresh rate ... but that'll be noticeable only when you hit the ceiling of the card's rendering speed.

As for tearing, well that won't happen if you leave VSync-ed rendering enabled - and with the best of LCDs managing a 16 millisecond pixels witch rate, 60 Hz is still exactly sufficient.

 

[HaloEighty8]

funny thing is when I tried running dual 1900FP's on a Matrox Parhelia via the DVI connectors they both go to 1280x1024x75hz... but when I run one on the DVI and one on analog I can get them both to run at 60hz? So running on dual DVI.. is that going to harm the lcd's at 75hz? The picture is fine..